What is a mixture is a combination of

Q: ch heat is

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Q: Are the following reactions predicted to have an equilibrium to the right or left based on HSAB theo...

A: According to HSAB theory, Hard acid and hard base together and soft acid with soft base form stable ...

Q: Reactions Oxidation / reduction /neither: CH3CH2OH Cro3 CH3CH H2C=CHCCH, + NH3 H2NCH2CH,ÖCH3 > Br 1....

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Q: A 1.5000-g sample of cereals was analyzed for nitrogen using the Kjeldahl procedure. The receiving f...

A: Answer -

Q: Why is the existence of a series of entering groups with different rate constants evidence for an as...

A: Introduction :  Ligand are those which give their lone pair of electron to the central metal atom or...

Q: Jsing the general formula for a 1.60), calculate the following: a. The number of hydrogen atoms E b....

A: By using general formula of cyclo alkane to answer the following questions--

Q: 1. A chemist determines that rust. What is the percent composition of each element in the In a lab, ...

A: 1. Solution - According to the question - Given values - Iron = 1.26 gram O2 = 0.54 gram Formulas - ...

Q: A certain amount of benzene (Density y=0.985 g/mL1 was dissolved in 0.500 kg CCl4 to produce a solut...

A: (a) Solution -

Q: Which graph corresponds to this reaction? NH3(g) + HCI(g) 5 NH,CI(s) D AG AG AG AG +

A: In this question we are given a chemical reaction and we have to choose the correct graph between Gi...

Q: A saturated solution of Pbl2 (Ksp= 7.9*10-9) contains [I']=0.00055 M. Find [Pbl3] if the formation c...

A: ANSWER : If we add iodine ions in to a lead ion solution , a solid PbI2 precipitate will form ,then ...

Q: 1. NBS 2. OH PBr3 Ether

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Q: what are the structures for the dollowing written out compltetly b) hexonoate reacts with methyl h...

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Q: i The Group 1 metal lithium reacts in a similar way to sodium. It reacts with oxygen, producing lith...

A: Group I metals react in same way and give same type of products.

Q: A gas mixture is composed of 2.0 moles H2 and I mole N2. Calculate (a) the average molar mass of the...

A: Number of moles of H2 = 2 mole Number of moles of N2 = 1 mole Mole fraction of H2 = 2/3 = 0.667 Mole...

Q: Determine the the mass of oxygen formed by the decomposition of 1.252 g of mercury(II) oxide. 2hgo-2...

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Q: A jogger runs a mile in 8.92 min. Calculate the speed in in/s.

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Q: 1. Consider Lewis structure for methane (CH4). a. If methane were to behave as an acid (if possible)...

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Q: No of D isomers are possible for hexose Select one: a. 8 b. 4 c. 6 d. 16

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Q: Sample exercises  (21) use Dalton's Law

A: Excercise 21 :-  Using Ideal gas equation.,  PV = nRT And, P = nRT/V 1 dm3  = 1 L 10 dm3  = 10 Litre...

Q: ) Which of the flowing reactions will have the faster rate and give a better yield? Use drawings of ...

A: Soln

Q: 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH CH, cCH solvent proton decoupled 200 160 120 80 ...

A: 13C-NMR: 5-signals indicates the five types of carbons.  1H-NMR: Three signals indicates three types...

Q: II. A stationary proton is moved from point A, where the potential is 450V, to point B, where the po...

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Q: a. True b. False

A: 1. True Sodium nitrite is a anti-oxidant in nature which when used on meat, enhance their colour and...

Q: Calculate the [KI] for Run A3 in Item 3 of Part I in your report pages. You will need the volumes on...

A: Given: Concentration of KI in stock solution = 0.20 M Volume of KI stock solution taken = 20.0 mL. V...

Q: NH4 PO4 NH3 HPO 2

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Q: 2. A compound contains 43.38 percent Na, 11.33 percent C, and 45.29 percent oxygen. What is the empi...

A: Here, I am providing you the solution of only question 2 as you have asked for it. Given, Mass % of ...

Q: What are the similar physical properties of open-chain hydrocarbons and closed-chain hydrocarbons?

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Q: A gas mixture is composed of 2.0 moles Hz and 1 mole N2. Calculate (a) the average molar mass of the...

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Q: Moles of OCl– in the diluted bleach titrated. ?

A: Iodine and hypochlorite play role in titration Moles of iodine play role in hypochlorite ions

Q: O- In the molecule below, label as many functional groups as you can Find! H. H. H. II O-P- 0-P- 0-P...

A: A functional group is a substituent in a molecule that causes molecule to show its behavior. The sam...

Q: Solving an enthalpy of neutralization problem. (see Chemistry 2e, Example 5.5): when 47.35 g of wate...

A: Given: Mass of water = 47.35 g. Initial temperature of water = 22.6 oC And final temperature of wate...

Q: Determine the mass of solid NaCH:COO that must be dissolved in an existing 500.0 mL solution of 0.20...

A: Given that : Concentration of acetic acid = 0.200 M Ka = 1.8 x 10-5

Q: 5 Which one of these statements about the periodicity of the Period 3 elements is correct? The melti...

A: The periodic table consists of seven horizontal rows or periods (numbered 1-7). In the horizontal ro...

Q: Give the IUPAC name for the following molecules. Br HO. HO

A: Rules for naming an organic compound: 1. Select the longest possible continuous carbon chain as a pa...

Q: Classify each of the following compounds as ionic (I), molecular (M), binary acid (BA), or oxyacid (...

A: This question is related to inorganic compounds and such compounds are classified into ionic, molecu...

Q: +O2 (8) 2 SO, (8) A,2.000 Lflask was initially filled with,0.0400 mol SO and 0.0200 mol O, and was a...

A: Volume of flask = 2L Initial moles of SO2 = 0.04 moles Initial moles of O2 = 0.02 moles Equilibrium ...

Q: A sample of Zn(s) is reacted with HCl(aq) to form hydrogen gas. The H2 gas bubbles out of aqueous so...

A: Zinc metal ( Zn )  reacts with Hydrochloric acid ( HCl ) to produce Zinc chloride ( ZnCl2 ) and Hydr...

Q: unit 3 Test - Energy in Which statement about the change in bond energy of this reaction is correct?...

A: Reaction :- CH4  + 4Cl2 ------> CCl4 + 4HCl  

Q: The solid rocket propellant for the Space Shuttle (and Tomahawk Missiles) contain ammonium perchlora...

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Q: half-life f

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Q: (a) What are colloids? How are they classified? (b) Discuss the origin of charge on the colloidal pa...

A: (a) Answer - Colloids - A colloid is a mixture in which one substance consisting of microscopically ...

Q: Complete each multi the way. Synthesis A 1) Br2, H20 2) Nao only one stereoisomer required 1) BrMg- ...

A: Soln

Q: 1. Calculate the standard enthalpies of the following reactions from the standard molar enthalpies o...

A: Exothermic reaction and endothermic reaction: Exothermic reaction : Exothermic reactions are reactio...

Q: (0.1mol) of NaoH was added to 1L of a solution containing a weak acid and its base salt had the same...

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Q: Why do we need to know the concept of chiral molecules?

A: The study of chirality in nature has played a very significant role in understanding biochemistry. C...

Q: HSO4 OH So,2 H20 +

A: Proton (H+) donors are acids and Proton acceptors are bases. HSO4- ------> SO42-  HSO4- act as ac...

Q: In a lab you are measuring the heat of reaction for an unknown reaction that occurs in solution: A +...

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Q: A gas mixture is composed of 2.0 moles N2 and 1 mole H2. Calculate the average molar mass of the gas...

A: Given: 2 moles of N2 1 mole of H2 2 moles of N2 has mass 2*28 = 56 gram 1 mole of H2 has mass 2 gram...

Q: 0-5 ) with 0.100 M NaOH. b. 0.0527 M solution of NH4Cl (Kb = 1.80 x 10-5) with 0.100 M NaOH. c.  0...

A: Here, the solution has titre which is analyses using the phenolphthalein. The range is pH 9.3 to 10....

Q: A 41.3-gram sample of a solution of naph- thalene, C10H8(s), in benzene, C6H6(l ), has a vapor press...

A: Given: Mass of sample = 41.3 g. Vapour pressure of solution = 63.9 Torr Vapour pressure of pure naph...